Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2019-20627
CVE-2019-20627:
C# vulnerability analysis and mitigation
Overview
AutoUpdater.cs in AutoUpdater.NET before version 1.5.8 was discovered to contain an XML External Entity (XXE) vulnerability. The vulnerability was disclosed on March 23, 2020, and affects the XML parsing functionality in the application (NVD, CVE).
Technical details
The vulnerability exists in the XML parsing functionality of AutoUpdater.cs where the XmlDocument was initialized without disabling the XML resolver. This configuration allowed for processing of external XML entities. The issue was fixed by adding 'XmlResolver = null' to the XmlDocument initialization (GitHub Commit).
Impact
The XXE vulnerability could potentially allow attackers to read arbitrary files on the affected system, perform server-side request forgery (SSRF), or cause denial of service conditions through the processing of malicious XML input (AttackerKB).
Mitigation and workarounds
The vulnerability was patched in AutoUpdater.NET version 1.5.8. Users should upgrade to this version or later to address the security issue. The fix involves setting XmlResolver to null when initializing the XmlDocument object (GitHub Release).
Additional resources
Source: This report was generated using AI
Related C# vulnerabilities:
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